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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1746076Generated: October 31, 2026

Hydrochloric Acid → HCID 90414726, compound

https://huagongshe.com/reaction/1746076

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 90413471HCID 90413471—
SolventMethanolHCID 887—
ProductHCID 90414726HCID 9041472674.6%

Reaction Steps

To a reaction vessel containing methyl 4-amino-6-(benzo[d][1,3]dioxol-4-yl)-3-chloro-5-fluoropicolinate (0.150 g, 0.462 mmol) was added methanol (9.24 mL) and 2 N sodium hydroxide (0.924 mL, 1.848 mmol). The reaction mixture was stirred overnight at room temperature, neutralized to pH 3 with 2 N HCl, and concentrated under a stream of nitrogen. The precipitate that formed was filtered off, washed with water, and dried to provide the title compound as a white solid (0.107 g, 74.6%): mp 171-173° C.; 1H NMR (400 MHz, DMSO-d6) δ 7.08-7.00 (m, 2H), 6.99-6.93 (m, 2H), 6.93 (br s, 2H), 6.06 (s, 2H); ESIMS m/z 311.2 ([M+H]+), 309.1 ([M−H]−).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09149038B2
Source datasetuspto-grants-2015_10
ORD IDord-b86c115d6afd41cf98340c98b8775f96
Source noteuspto-grants-2015_10